--- loncom/homework/grades.pm	2009/02/04 13:21:40	1.549
+++ loncom/homework/grades.pm	2009/02/14 17:03:40	1.550
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # The LON-CAPA Grading handler
 #
-# $Id: grades.pm,v 1.549 2009/02/04 13:21:40 hauer Exp $
+# $Id: grades.pm,v 1.550 2009/02/14 17:03:40 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -5487,7 +5487,8 @@ sub scantron_parse_scanline {
     my ($line,$whichline,$scantron_config,$scan_data,$just_header)=@_;
 
     my %record;
-    my $questions=substr($line,$$scantron_config{'Qstart'}-1);  # Answers
+    my $lastpos = $env{'form.scantron_maxbubble'}*$$scantron_config{'Qlength'};
+    my $questions=substr($line,$$scantron_config{'Qstart'}-1,$lastpos);  # Answers
     my $data=substr($line,0,$$scantron_config{'Qstart'}-1);     # earlier stuff
     if (!($$scantron_config{'CODElocation'} eq 0 ||
 	  $$scantron_config{'CODElocation'} eq 'none')) {